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richierich · 21st November 2006, 14:48

I was educated in metric, but as an Engineer most things tend to be imperial, although a few contracting companies and consultants have tried to metricate everything, they ask for 25mm NB Sch40 pipe, when there is no such thing, you can have 1". Or they ask for a 100mm ANSI Flange, again no such thing, but you can have 4", or the other way is when we take a metric standard and try and imperialise it, you can't have a 4" DIN2527 flange, but you can have a 100mm.

I am not sure what I prefer in relation to roads etc. Probably miles, everything is nearer.

21st November 2006, 14:48	#17 (permalink)
richierich Smell My Cheese! Rocketship door handle Join Date: 17th May 2006 Location: Bicester, Oxfordshire Posts: 1,847 Thanks: 0 Thanked 0 Times in 0 Posts	I was educated in metric, but as an Engineer most things tend to be imperial, although a few contracting companies and consultants have tried to metricate everything, they ask for 25mm NB Sch40 pipe, when there is no such thing, you can have 1". Or they ask for a 100mm ANSI Flange, again no such thing, but you can have 4", or the other way is when we take a metric standard and try and imperialise it, you can't have a 4" DIN2527 flange, but you can have a 100mm. I am not sure what I prefer in relation to roads etc. Probably miles, everything is nearer.